fix: Update ZITADEL API to v2.68.1

[zitadel-workflow]

Update report

• latest zitadel tag: v2.68.1
• checked out zitadel version: v2.68.1
• generated clients
• Auto-generated by create-pull-request

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 101 lines in your changes missing coverage. Please review.

Project coverage is 0.05%. Comparing base (ecb8f77) to head (7146ae8).

Files with missing lines	Patch %	Lines
pkg/client/zitadel/session/v2/session.pb.go	0.00%	96 Missing ⚠️
pkg/client/zitadel/member/member.pb.go	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #427      +/-   ##
==========================================
- Coverage    0.05%    0.05%   -0.01%     
==========================================
  Files         130      130              
  Lines      107727   107820      +93     
==========================================
  Hits           57       57              
- Misses     107667   107760      +93     
  Partials        3        3              

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